arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2308.02416eess.SPcs.LG
收藏

局部-全局时间融合网络与注意力机制用于多类别和多分类心律失常分类

Local-Global Temporal Fusion Network with an Attention Mechanism for Multiple and Multiclass Arrhythmia Classification

Korea University(高丽大学);Seers Technology Co. Ltd.(Seers科技有限公司);The Catholic University of Korea(韩国加图立大学)

Yun Kwan Kim, Minji Lee, Kunwook Jo, Hee Seok Song, Seong-Whan Lee

AI总结:

提出一种结合局部-全局时间融合与注意力机制的框架,在受限输入长度下准确检测和分类心律失常,并优于现有模型。

摘要:

临床决策支持系统(CDSS)已被广泛用于支持心脏病专家在心电图(ECG)检测和分类心律失常时的决策。然而,由于心律失常的持续时间长短不一,为心律失常分类任务构建CDSS具有挑战性。尽管心律失常的发作时间各不相同,但先前开发的方法并未考虑这些情况。因此,我们提出一个框架,包括(i)局部时间信息提取,(ii)全局模式提取,以及(iii)带有注意力的局部-全局信息融合,以在受限输入长度下进行心律失常检测和分类。我们通过检测心律失常的发作和终止作为一个发作期,并基于MIT-BIH心律失常数据库(MITDB)和MIT-BIH心房颤动数据库(AFDB)分别评估了10类和4类分类的性能。结果在统计上优于比较模型。为了检查所提出方法的泛化能力,将AFDB训练的模型在MITDB上进行测试,与最先进的模型相比,取得了更优越的性能。所提出的方法可以捕获局部-全局信息和动态,而不会造成信息损失。因此,心律失常可以被更准确地识别,并且可以计算其发生时间;因此,临床领域可以通过使用所提出的方法制定更准确的治疗计划。

英文摘要:

Clinical decision support systems (CDSSs) have been widely utilized to support the decisions made by cardiologists when detecting and classifying arrhythmia from electrocardiograms (ECGs). However, forming a CDSS for the arrhythmia classification task is challenging due to the varying lengths of arrhythmias. Although the onset time of arrhythmia varies, previously developed methods have not considered such conditions. Thus, we propose a framework that consists of (i) local temporal information extraction, (ii) global pattern extraction, and (iii) local-global information fusion with attention to perform arrhythmia detection and classification with a constrained input length. The 10-class and 4-class performances of our approach were assessed by detecting the onset and offset of arrhythmia as an episode and the duration of arrhythmia based on the MIT-BIH arrhythmia database (MITDB) and MIT-BIH atrial fibrillation database (AFDB), respectively. The results were statistically superior to those achieved by the comparison models. To check the generalization ability of the proposed method, an AFDB-trained model was tested on the MITDB, and superior performance was attained compared with that of a state-of-the-art model. The proposed method can capture local-global information and dynamics without incurring information losses. Therefore, arrhythmias can be recognized more accurately, and their occurrence times can be calculated; thus, the clinical field can create more accurate treatment plans by using the proposed method.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑